create txt with specific filename in a given path
delete txt according to conditions
divide the context in txt into two parts equally and save them in different txt
read txt according to different delimiter
When the context in the txt is orginized as
1
2
3
4
use readRowInToArray() to read the txt
When the context in the txt is orginized as
123456789
use readColumnInToArray() to read the txt
When the context in the txt is orginized as
1,2,3,4,5
6,7,8,9,10
11,12,13,14,15
16,17,18,19,20
use readInToMatrix() to read the txt
connect two txt files by line